EP 0431927 B1 19950419 - Method for producing aluminium nitride by carbothermal reduction and apparatus.
Title (en)
Method for producing aluminium nitride by carbothermal reduction and apparatus.
Title (de)
Verfahren zur Herstellung von Aluminiumnitrid durch karbothermische Reduktion und Vorrichtung hierfür.
Title (fr)
Procédé pour la production de nitrure d'aluminium par réduction carbothermique et appareil.
Publication
Application
Priority
US 44731089 A 19891207
Abstract (en)
[origin: EP0431927A1] By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray (70) having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations (75) and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant. <IMAGE>
IPC 1-7
IPC 8 full level
C01B 21/072 (2006.01); C04B 35/581 (2006.01)
CPC (source: EP KR US)
C01B 21/072 (2013.01 - KR); C01B 21/0726 (2013.01 - EP US); C01F 7/66 (2013.01 - KR); C04B 35/581 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0431927 A1 19910612; EP 0431927 B1 19950419; AU 647759 B2 19940331; AU 6782390 A 19910613; CA 2031629 A1 19910608; DE 69018787 D1 19950524; DE 69018787 T2 19950824; IL 96566 A0 19910916; JP H04108605 A 19920409; KR 910011626 A 19910807; US 4983553 A 19910108
DOCDB simple family (application)
EP 90313226 A 19901206; AU 6782390 A 19901206; CA 2031629 A 19901206; DE 69018787 T 19901206; IL 9656690 A 19901205; JP 40534990 A 19901206; KR 900020084 A 19901207; US 44731089 A 19891207